I've heard that from a number of people and would imagine it's true in some churches. I guess I've been fortunate, having been involved with seeker-sensitive churches for nearly 20 years but have always heard messages on the sin-nature/sinful-nature/flesh/sarx, the cross, the blood, etc.
Having grown up in a Baptist church where Christianity was a list of don'ts and where you couldn't clap in the morning services and where drums weren't yet saved, I found the more modern seeker-sensitive services much more appealing, at least for me. I've been in a leadership role ever since.
I have to admit ... "seeker sensitive" catering drives me nuts!
;)
I seriously doubt you are in a "seeker-sensitive" church if you are dwelling on sin. Sin is a verboten word in seeker-sensitive churches. It implies that a person is "bad".